Hi Aloneball 
I’m just going through your tutorials at a really high level, just to be sure that I can get my head around them. Next week I’ll be able to make a start into implementing them. Great stuff, so VERY useful!
You know, it actually kind of helps me… when in the videos you sometimes get puzzled or don’t get stuff working temporarily… to go through your fixing process with you. So a tutorial with a bit of head scratching and back 'n forth is still REALLY useful.
I understand Mixamo’s limitations on distributing their animations etc, but I think… as a marketplace package… your **‘Aloneball’s First / Third Person Action Climbing BP Pack’ **would be just fine… if you deleted the Mixamo animations and replaced them with simple placeholders to start with (and then added your own mocaps as you updated it). Users can then add Mixamo animations as per your videos, and serious users are likely to use their own anims anyway.
Btw, I just spotted that #27 is missing from your YouTube playlist. The actual numbers aren’t a problem of course, unless you might’ve accidentally forgotten to upload one.